Intersil ISL12021
The ISL12021 device is a low power real time clock with an embedded Temp sensor for oscillator compensation, clock/calendar, power fail, low battery monitor, brown out indicator, single periodic or polled alarms, intelligent battery backup switching and 128 bytes of battery-backed user SRAM. The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, and seconds.| Part No. | ISL12021 |
|---|---|
| Datasheet | ISL12021 Download |
| Manufacturer |  Intersil |
| Description | Real Time Clock |
| Buy | Stock & Price |
FEATURES
● Real Time Clock/Calendar - Tracks Time in Hours, Minutes and Seconds - Day of the Week, Day, Month and Year● On-chip Oscillator Compensation Over the Operating Temp Range - ±5ppm over -20°C to +70°C
● Day Light Saving Time - Customer Programmable
● Separate FOUT pin - 15 Selectable Frequency Outputs
● 1 Alarm - Settable to the Second, Minute, Hour, Day of the Week, Day, or Month - Single Event or Pulse Interrupt Mode - Dedicated IRQ output pin
● Automatic Backup to Battery or Super Cap - Operation to VBAT = 1.8V - 1.0µA Battery Supply Current
● Battery Status Monitor, 2 Levels, Selectable by Customer to: - Seven Selectable Voltages for Each Level
● Power status Brown Out Monitor - Six selectable trip level, from 4.675V to 2.295V - Separate Low Voltage LVRST pin
● Time Stamp during Power to Battery and Battery to Power Cross Over - Time Stamp. First VDD to VBAT, and Last VBAT to VDD
● 128 Bytes Battery-Backed User SRAM
● I2C Interface - 400kHz Clock Frequency
● 14 Ld TSSOP p...
